Didn't the same " organisation " rubbish the concept of water fed when it first came out ?
Only on Newsnight. They said it wouldn't remove 'impacted bird soilage' or something (poo).
Caused a bit of a stink at the time, that did.
Lots of window cleaners changing from ladders to WFP, trying to convince their customers it'll be okay, and the FWC go on prime time TV and tell everyone it doesn't work.